Seams — Design skill for Claude Code

Seams

**Design at the seams. Build in slices.**

Seams is a Claude Code plugin (plugin id `matt-pocock-workflow`) that makes [Matt Pocock's engineering skills](https://github.com/mattpocock/skills) lead every session, the way Superpowers does for its own skills: a session bootstrap that routes each development task, a grill that asks one clickable question at a time, gated spec, tickets and implement steps, and a senior-engineer layer around them (design lens, definition of done, handover, repo foundations).

The workflow

Every session starts with the routing policy in context. From there, a request goes through three stages: **route**, **design**, **build**. Every diamond is a question Claude asks you, one at a time with the recommended answer first, and waits on. Nothing is built, published or merged without a yes.

1. Route: ceremony scales with the change

flowchart LR
    S([Session starts]) --> B[/"Bootstrap injected:
routing policy in context"/]
    B --> R{Classify
the request}
    R -->|typo, copy, config| T["Edit"] --> V
    R -->|broken, failing, slow| D["diagnosing-bugs
reproduce → hypotheses
→ regression test → fix"] --> V
    R -->|bounded change| G["grill"] --> TDD["tdd at the
agreed seams"] --> V
    R -->|new behavior| G2["grill"] --> I["implement"] --> V
    R -->|multi-session build| G3["grill"] --> SPEC["to-spec → to-tickets
→ implement per ticket"] --> V
    R -->|too foggy to see the way| W[/"suggests /wayfinder"/]
    V["verification-before-completion
+ handover"]
    B -.repo not set up.-> FO["foundations
(once per repo)"]

2. Design: the grill, one question at a time

flowchart TD
    G["Facts from the code
+ one decision, clickable"] --> Q{frontier
empty?}
    Q -->|no| G
    Q -->|yes| L["Design lens, 10 axes
data · seams · failure modes · scale · security
observability · rollout · testing · operability · cost"]
    L -->|an axis applies
and is uns